RHEL/CentOS 7 on SW RAID1 with LVM

Installing RHEL/CentOS 7 on software RAID 1 with LVM

I wasn't able to do this task in new CentOS 7. You can set up RAID as well as LVM but not LVM on RAID in new anaconda installer.
The quick hack is to use CentOS 6.5 DVD to do the partitioning and then hit back to cancel installation. Then, when booting CentOS 7 just select mount points for created logical volumes. It will recognize the RAID arrays as well as volume group with created logical volumes.
If you know better way, let me know in the comments.
Thanks, Aas.